Buffer overflow in Hp Color_laserjet_cm4540_mfp_cc419a
CVE-2021-3942
Certain HP Print products and Digital Sending products may be vulnerable to potential remote code execution and buffer overflow with use of Link-Local Multicast Name Resolution or LLMNR.
Vulnerability class: Buffer Overflow
EPSS: 0.014 (68.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Hp Color_laserjet_cm4540_mfp_cc419a
- Hp Color_laserjet_cm4540_mfp_cc419a_firmware
- Hp Color_laserjet_cm4540_mfp_cc420a
- Hp Color_laserjet_cm4540_mfp_cc420a_firmware
- Hp Color_laserjet_cm4540_mfp_cc421a
- Hp Color_laserjet_cm4540_mfp_cc421a_firmware
- Hp Color_laserjet_cm5525_mfp_ce707a
- Hp Color_laserjet_cm5525_mfp_ce707a_firmware
- Hp Color_laserjet_cm5525_mfp_ce708a
- Hp Color_laserjet_cm5525_mfp_ce708a_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- hp-security-alert@hp.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-3942?
- CVE-2021-3942 is a critical-severity vulnerability in Hp Color_laserjet_cm4540_mfp_cc419a, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2022-12-12.
- How severe is CVE-2021-3942?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-3942 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.